Lophophora diffusa var. koehresiiŘíha: This is probably the smallest Lophophora. It has big pale pink flowers with darker midstrip. Stem characteristically dark green coloured and the ribs are more strongly in relief.

Lophophora diffusa subs. kubesaeHalda, Kupčák & Malina: The particularity of this subspecies will be revealed only in older specimens that are larger in size and tend to form large multi-headed heaps, up to 1,5 mt in diameter.